The 2022 Cadillac CT4-V Blackwing (Fig. 1) and CT5-V Blackwing (Fig. 2) are, simply put, the most track-capable Cadillacs ever. Boasting power, handling, refinement and luxury that leverage a Cadillac […]
The pilot replacement program (U.S.) for the 9T65 9-speed automatic transmission (RPO M3V, M3W) (Fig. 16) on 2018-2021 Enclave, Traverse; 2019-2021 Blazer; and 2020-2021 Acadia, XT5, and XT6 models, which […]
Some 2020-2021 Corvettes may experience several electrical concerns related to terminal retention issues at the instrument panel wiring harness fuse block (located at the passenger’s side of the instrument panel) […]
A squeak or clunk sound from the rear leaf springs may be heard on some 2015-2021 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD models. The sound may be caused by the spring […]
There may be a slipping condition, a loss of forward gear and/or an illuminated Check Engine light on some 2019-2021 Malibu and 2020-2021 Trailblazer and Encore GX models equipped with […]
The Driver Information Center (DIC) thumbwheel control on the right side of the steering wheel on some 2021 Corvettes (Fig. 28) may not work when selecting any Information tiles, radio […]
Transmission operation on some 2018-2022 Terrain; 2019-2022 XT4; 2020-2022 Encore GX, XT5, XT6, Acadia; and 2021-2022 Envision and Trailblazer models may not be fully understood by owners, especially at highway […]
The monthly GM Service Know-How Emerging Issues seminars provide service/technical information on current issues and GM certified repairs. The latest service topics from GM Brand Quality and Engineering covered in […]
The in-vehicle trailering app (RPO U1D) included with the Advanced Trailering System available on the 2019-2021 Silverado 1500 and 2020-2021 Silverado 2500HD/3500HD and the ProGrade Trailering System available on the […]
Techline Connect brings together all the common resources technicians use every day for diagnosis and repairs in an all-in-one application, integrating Service Information, programming, diagnostics, vehicle information and other features. […]
A new Engine Oil Capacities chart (Fig. 10) for the 2021 model year is now available under the Reference Chart menu. The chart includes engine, RPO, specifications (liters and quarts) […]
Some new 2020-2021 XT5, XT6, Blazer, Camaro and Acadia models equipped with the 3.6L V6 engine (RPO LGX) may have an oil leak at the engine oil filter. (Fig. 12) […]
When diagnosing low-mileage 2020 Regal, Equinox; 2020-2022 Encore GX, Envision, XT4, XT5, XT6, Blazer, Malibu, Acadia, Terrain; and 2021-2022 Trailblazer models equipped with the 9T45 (RPO M3F, M3U), 9T50 (RPO […]
GM recognizes the value and skill that certified technicians bring to the service department and the impact the nationwide shortage of technicians is having on the industry. Retaining and recruiting […]
The Auto Stop/Start function (RPO KL9) may be inoperative on some 2019-2021 Silverado 1500 and Sierra 1500 models. In addition, the Check Engine MIL may be illuminated and DTCs P3055 […]
The Adaptive Cruise Control (RPO KSG) may be inoperative on some 2019-2021 XT5, XT6, Blazer and Acadia models along with an Adaptive Cruise Control Temporarily Unavailable message on the Driver […]
Feature content on 2021-2022 GM models is continuing to be affected by the industry-wide shortage of semiconductors. Beginning on August 23, 2021, some 2021 Silverado 1500 and Sierra 1500 models […]
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Techline Connect Tips March 2023
The EL-52800 Diagnostic Charge Battery Station (DCBS) is the recommended and approved tool for diagnosing battery replacements and submitting battery warranty claims. And effective January 1, 2024, the DCBS (Fig. […]
A new feature will make logging into Techline Connect easier and quicker for users. Previously, Techline Connect had its own unique login, using the Techline Connect desktop icon, and users […]
Take a detailed look at a wide range of innovative features and advanced systems found on GM vehicles to gain a better understanding of proper operation. Each short video reviews how a feature works, highlights operating tips and shows ways to customize settings, if applicable.
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